Heat-processing recorder



F. J BAST v 2,099,417

HEAT PROCES S ING v RECORDER Nov. 16, 1937.

Filed Jan. 2, 1932 3 Sheets-Sheet 1 m wot/1.1019

A TTOR/VE VS Nov. 16, 1937. T 2,099,417

HEAT PROCESS ING RECORDER Filed Jan. 2, 1932 3 Sheets-Sheet 2 W] TNESS IN VENTOR 6 W FAWN/r. J Bfl57' C mo 04 W A TTORNE VS Nov. 16, 1937. F. J. BAST HEAT PROCESSING RECORDER 3 Sheets-Sheet 3 Filed Jan.

W/TNESS' Patented Nov. 1c. 1937 2,099,417

UNITED STATES PATENT OFFICE 2,099,417 HEAT-PROCESSING RECORDER Frank J. Bast, Queens Village, N. Y., assignor to Charles J. Tagiiabuemg. 00., Brooklyn, N. Y., a corporation of New York Application January 2, 1982, No. 584,352 Chime. (01. 234- The present invention relates to heat processment inspectors as pasteurized milk, to guard ing apparatus provided with a recorder mechaagainst negligence of employees in prematurely l0 mechanism is sensitively responsive, to compel the recorder of the exact instant at which the disl0. recorder mechanism to record the time of the charge valve is brought from its closed position occurrence of such variations of such other facto its open position. tors. My invention is of particular utility in In the accompanying drawings Fig. 1 is a top connection with operations or treatments replan view of the valve and associated mechanism. quiring the continuance of a temperature for a the valve being in the closed position: Fig- 2 l5 definite or minimum length of time and one eflect shows the valve in elevation, likewise in closed whether the duration of a certain operation or Figs 3 and 4 are spectively 8- op D1811 n 8 9 heat-processing treatment hasbeen of the proper front elevation of the valve in the open position. length. and Pig. 5 is an illustrative view showing the pasessential that the milk be kept at a pasteurizing illustrated as provided with 8 transve sely Bi e!- temperature which is usually about 144 F. for at tured movable member or plug If, the position so least half an hour. Records of the duration and of the plug being con r ll y the handle so temperature of the pasteurizing treatment are The valve is supported upon the tank and premade on a recorder chart which notes the data vented from being rotated with relation thereto under treatment and usually near the bottom of bearing collar Ila of the front forked end I1 35 the v'at or tank. The charts are carefully studied of the frame ll, said lugs extending from the by Government inspectors and if any chart should bo y t Valve. the nut! nd "b e ng show that the pasteurizing temperature was not thereupon tightened on the studs l4 and II maintained for at least one-half of an hour the gain t the ends of h ll r I and lu 0 milk from that vat will not be pasteurized and The conventional temperature-sensitive bulb 40 is forbidden to be. disposed of as pasteurized milk. (not shown) occupies a posi i n Wi hin the vet II Ii, however, the vat begins to be drained before at the lower part thereof and is in communication the half hour has elapsed, the milk which leaves via he flexib e s o i the o e 15 the vat is not properly pasteurized, but the chart which may be of any standard construction 5 will still continue to record the presence of the whereby the temperature of the sensitive bulb pasteurizing condition because the sensitive bulb is recorded by the pen 25b on the chart He remains in the body of 144 milk until the upper (Fig. 5). level 01' the milk in the vat begins to coincide As shown in Figs. 1 to 4, the frame It is prowith the position of the bulb. Accordingly the vided with the forked or U-shaped portion I! chart will show a continuance of the pasteurizing whose arms are pivotally mounted upon the stud go condition though in fact the major portion of H, the body of the valve being cut away as the milk has not been pasteurized. In order to shown in II, Figs. 1 and-3, to provide room for control such a. situation and to make sure that the arm adjacent to the wall of the tank. The milk which has actually not been pasteurized frame l6 includes tubular portions II and Ill:

5; should n t re e the sanction o e ove nextending at right angles to each other. Within is adapted to :bear

.cientextent :to cause members 23.

to the "position :shown electric connection :between the contacts 23,

the tubular portionv II a mercury contactor'capsulelil is positioned, mbeing :preierabiy packed with a sleeve 2| rubber or other suitable cushioning material. A body of mercury? issituated within the capsule '20 and is adapted upon the tilting or the frame it toward the valve ll (Fig.

'2) to bridge two'contact members 23 (Fig. 1).

The contact members 23 are connected with cables 24 which iormzpart of the electric circuit of the clock mechanism oi a time-temperature recorder such as the recorder 25 shown in Fig. 5. The cables .24 pass through the tubular portion 19a, plug threaded into the endoi the tubular portion Isa providing a fluid-tight sea1;.aifluidtight seal is similarly provided ior the tubular portion i9 by the plug 3|.

The mm 16 is provided with-a roller 26 which against a cam surface composed of the flange 21 which projects horizontally from the plug l2. The flangei'l is provided with a recessed portion oi such size anddepthas to accommodate the roller 26 and to enable the frame I 6 to be tilted towardithe valve to a sumthe body of mercury 22 to move toward the valve and to bridge the contact .A compression :spring 29 operates to .urge the roller 26 against the flange 21.

Inthe closed position of the valve the roller 26 is seated in the recess 28 (Figs. 1 .and 2) and the circuit oi! the recorder clock mechanism, or motor, 25d'is closed. Assoon as the valve begins to be opened, the roller 26 .is 'cammed out of recess 28 against the action of :spring '29, so that the frame valve, causing'thebody of mercury to 'move in .Eig. 4, breaking the openingthe switch, and stopping the recorder :clock whose record will accordingly indicate the exact instant at which the valve .is opened. It will'beclear from the foregoing description that by the use of thenovelsarrangement fraudu- ,wlent or inadvertent reduction in the time during practically which the milk is subjected tc a pasteurizing temperature is immediately made evident to an inspector. The deviceis simple :and requires no substantial reconstruction oi. standard parts. Furthermore it is .so assembled as toibe practically fooland 'malice-proof, especiallyiif the recorder chart is fastened to the clock-spindle by means of one. or morexpins 26 which pierce the chart-and thereby prevent the .operaton from turning it byhand or from concealing such a manipulationin casehe attempts 'It isevidentthatmy novel mechanism maybe utilized "in other-situations whereinit is desired within the operatively i6 is tilted away irom the and that my invention is not limited to the specific embodiment thereof shown and described, but that various modifications may be resorted to scope of the appended claims without departing from the spirit of the invention.

I claim:

1. In an arrangement for recording automatically the temperature and time of discharge 01' a fluid from an apparatus for heat-processing the fluid, the combination with an instrument for recording the then temperature of the fluid; means sensitive to the temperature oi. the fluid and'operatively connected with said instrument; said-instrument including means for recording the temperature on a chart and an electric motor for driving the chart; an electric circuit for operating said motor; and a discharge valve associated with said apparatus: of a switch actuated by said valve and connected in said circuit for controlling the operation of said motor, said switch being arranged to open said'circuit upon the opening of said valve.

(2. In an arrangement for recording automatically the temperature and time of discharge of a fluid from an apparatus for heat-processing the fluid, the combination with an instrument for recording the then temperature of the fluid and connected with said apparatus; a circuit; and an electric motor connected with said circuit: of a discharge valve associated with said apparatus; a sealed switch in said circuit adapted to be closed in one position and be :opened in another; and means operatively connected with said valve and adapted and arranged to operate said sealed switch to whichever of said positions is effective to stop said motor whenever said valve is opened.

3. In an arrangement for recording automatically the temperature and time of discharge of a fluid from an apparatus for heat-processing the fluid, the combination with an instrument for recording the then temperature 01 the fluid and on said movable member acting 'to compel the irame to become inclined in the opposite direction as said member is moved to open position.

FRANK J. BAS'I.. 

